package com.itheima.dao;

import com.github.pagehelper.Page;
import com.itheima.POJO.CheckGroup;
import com.itheima.POJO.CheckItem;
import com.itheima.POJO.User;

import java.util.List;
import java.util.Map;

public interface UserDao {

    User findByUsername(String username);
}
